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  1. #include <iostream>
  2.  
  3. template<typename T>
  4. struct Outer
  5. {
  6. private:
  7. 	void foo()
  8. 	{
  9.         std::cout << "Outer<T>::foo()" << std::endl;
  10. 	}
  11.  
  12. public:    
  13. 	Outer() : inner( *this , &Outer::foo ) 
  14. 	{
  15.         inner();
  16. 	}
  17.  
  18. 	struct Inner
  19. 	{
  20.         typedef void (Outer<T>::*F)();
  21.  
  22. 		Inner( Outer<T>& o , F f ) : outer( o ) , func( f )
  23. 		{
  24. 		}
  25.  
  26.         void operator()()
  27.         {
  28.             (outer.*func)();
  29.         }
  30.  
  31.         F func;
  32.         Outer<T>& outer;
  33. 	};
  34.  
  35.     Inner inner;
  36. };
  37.  
  38. int main()
  39. {
  40. 	Outer<int> outer;
  41. }
Success #stdin #stdout 0s 3296KB
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Outer<T>::foo()
https://ideone.com/LyYZKG
language:
C++ (gcc 8.3)
created:
11 years ago
visibility:
secret

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